README.md

SparkFun Fingerprint Reader (GT-521Fxx)

⭐ Please star this project if you find it useful!

Interfacing Library for .NET 4.5 (and Mono) and .NET Core!.

• Product Page
• Data sheet
• Reference Manual
• Wiki

Specifications

Technical Specs	GT-521F32 / GT-521F52
CPU	ARM Cortex M3 Cortex
Sensor	optical
Window	16.9mm x 12.9mm
Effective Area of the Sensor	14mm x 12.5mm
Image Size	258x202 px
Resolution	450 dpi
Max # of Fingerprints	200 / 3000
Matching Mode	1:1, 1:N
Size of Template	496 Bytes(template) + 2 Bytes (checksum)
Serial Communication	UART (Default: 9600 baud) and USB v2.0 (Full Speed)
False Acceptance Rate (FAR)	< 0.001%
False Rejection Rate (FRR)	< 0.01%
Enrollment Time	< 3 sec (3 fingerprints)
Identification Time	< 1.5
Operating Voltage	3.3V ~ 6Vdc
Operating Current	< 130mA
Touch Operating Voltage	3.3Vdc
Touch Operating Current	< 3mA
Touch Standby Current	< μ5

Library Features

• All documented commands are implemented (2018-06-25)
• Operations are all asynchronous
• Nice sample application included for testing
• MIT License
• .Net Framework (and Mono)
  • No dependencies
• .Net Standard
  • SerialPortStream: Independent implementation of System.IO.Ports.SerialPort and SerialStream for portability.

NuGet Installation:

PM> Install-Package Unosquare.Sparkfun.FingerprintReader

Usage

using (var reader = new FingerprintReader(FingerprintReaderModel.GT521F52))
    {
         await reader.Open("COM4");
         Console.WriteLine($"Serial Number: {reader.SerialNumber}");
         Console.WriteLine($"Firmware Version: {reader.FirmwareVersion}");
    }

Related fingerprint projects

Project	Description
wsfingerprint	WaveShare Fingerprint Reader - Interfacing Library for .NET
libfprint-cs	The long-awaited C# (.NET/Mono) wrapper for the great fprint library